package com.doremi.service;

import java.util.List;

import com.doremi.util.Album;
import com.doremi.util.Artist;
import com.doremi.util.Track;

/**
 * This interface represents the services needed to provide information about the songs, playlist,
 * singers, etc.
 * 
 * @author alejo
 *
 */

public interface ServiceLayer {
	
	List<Artist> getAllArtits();
	List<Album> getAllAlbums(Artist artist);
	List<Track> getAllTracks(Album album);

}
